An easy to get to connection point on T43 is in
the Memory Bay underneath the T43
Carefully examine the 3 connections points above.
You are checking to make sure there is clean metal to contact later with the
probes that will be pushed onto those points.
If there is a film coating the copper pads or the metal looks tarnished then
carefully scrape it with a sharp blade to just remove the film or tarnish, take
care we just need a small clean area to make contact with the sharp probes
If your T43 has a fingerprint scanner then disconnect
the fingerprint scanner.
A more difficult connection point to access
Once you have your T43 HMM search the manual for
"Removing and replacing a FRU" then scroll down to 1060
Keyboard, it's on Page 80 of the manual, follow the
instructions in the manual to lift up the keyboard, leave it plugged in just
move it forward toward you to reveal the connection points.
You should now be able to see U63, see photos
The connections we will use are near U63, just
under the RAM module if one is fitted.
You will need to have some RAM in the T43 for
use later when we switch it ON, no don't switch it ON just now, later OK.
If there is no RAM in the other DIMM slot, the
one underneath the T43, then you will need to remove the RAM from above U63
and install it in the optional DIMM socket underneath the T43.
That other DIMM socket is illustrated on page
182 of the manual, item 2, undo the single screw on the cover to
If there is already RAM installed in the other
DIMM socket underneath the T43 then you can just leave it there.
If there is no RAM installed in the other DIMM
socket underneath the T43 then remove the RAM from under the keyboard and
install it in the DIMM socket underneath the T43, later when all the work is
done reverse the procedure.
The RAM is held by 2 clips one on each side
Use one finger nail on the end of each clip to
pull the clip aside
DON'T BEND THEM, just pull it out sideways just
enough so the RAM pops up, then you can remove it.
You must pull both clips at the same
use one finger from one hand to pull on one
and a finger from your other hand to pull on the other clip AT THE SAME TIME
and the RAM will pop up ready to be removed.
To install RAM into a DIMM socket start with
the RAM at angle of 45 degrees to the board [note the RAM can only go in
one way there is a key slot that is not in the middle, it only fits one way].
Holding the RAM at 45 degrees to the board
insert the RAM into the socket, make sure it is in all the way, if it wont
go in don't force it, turn it over till the key slot matches the socket.
Hold it into the socket and slowly fold it down flat until the two clips
snap over it to lock it in place.